Unbroken-main-line switch.



PATENTED MAY 17, 1904.

G. M. ERVIN. UNBROKEN MAIN LINE SWITCH.

APPLICATION FILED AUG.1, 1903.

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PATENTED MAY 17, Y1904.

G. M. ERVIN. UNBROKBN MAIN LINE SWITCH;

APPLICATION FILED AUG. 1, 1903.

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GEORGE M. ERVIN, OF JOHNSTOVVN,

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PATENT OEEICE.

PENNSYLVANIA, AssIeNoE To THE LORAIN STEEL COMPANY, A CORPORATION OF PENNSYLVANIA.

UNBROKEN-IVIAlN-LINE SWITCH.

SPECIFICATION forming part of Letters Patent No. 759,871, dated May 17, 1904.

Application tiled August 1, 1903.

To LZZ wifi/0777, it man concern:

Be it known that I, GEORGE M. ERVIN, of

- Johnstown, in the county of Cambria and State of Pennsylvania, have invented a new and useful Improvement in Unbroken-lVIain-Line Switches, of which the following is a full,clear, and exact description, reference being had to the accompanying drawings,which form a part of this specification.

My invention has relation to certain new and useful improvements in that class of railway-switches known as unbroken-main-line switches, and is designed to provide a switch of this type which can lloe readily assembled and connected in the track and which will not form an obstruction in the street and which is of such construction as not tov injure or be injured by miscellaneous street trafic.

With these objects in View my invention consists in the novel construction, ,combination, and arrangement of parts, all as hereinafter described, and pointed out in the appended claims, reference being had to the accompanying drawings, in which Figure l is a plan view of a switch embodying my invention; Fig. 2, a section on the line 2 2 ofFig. 1, but with the movable member or tongue thrown to its other position; and Fig. 3 is a section taken on the lines 3 8 of Fig. 1. Fig. A is a detail side view of one of the tongues detached, and Fig. 5 is a section on the line 5'5 of Fig. 1.

The letters A Al designate the unbrokenvmain-line rails, and B B' the rails of the branch track or turnout.

O is a tongue-switch which is placed in the outer rail B of the branch track. This switch is preferably but not necessarily of the con- Serial No. 167,891. (No model.)

flange c at its curved side, to receive which the guard portion c2 of the casting O is undercut and recessed. l

D is a casting which is secured to the inner side of the rail A and is formed with a floor portion l level with Ythe tram a of said rail. 55 Eis a movable member or tongue which is pivoted to the said casting at e. This tongue is formed with the lateral lifting' flange or riser E, adapted to raise the wheel-fianges to the level of the head ofthe rail A', said flange 60 or riser running out at about the point where it comes to such level. The tongue is also formed with a guard portion E2.

D is a back-stop or guard-ange on the casting D.

The two tongues O and E are pivoted at opposite ends, so that their point portions eX- tend past each other, tongue E being set sufficiently in advance of the tongue O to cause Zthe car-wheels to be raised to th'e level of the 70 head of the rail A before the tongue O begins to deflect the wheels laterally. Tongue C has a depending lug o3 attached thereto at a point inside of the main rail A, and this lug is engaged by a transverse connecting-rod F. Tongue E has a depending lug e', which is engaged by a rod F. The two rods F and F' are connected to opposite arms of a short lever G, whereby movement of the two tongues will be in opposite directions. SO

The only cut which it is necessary to make in the main rails in order to connect up this switch isa small notch in the tram of rail A for the depending lug e2, and even this may be avoided by offsetting said lug inwardly. The conneetingrods are preferably incased in a suitable boxing, such as shown at H.

I do not in this application claim, broadly, in an unbroken-main-line switch the combination, with a dellecting-tongue at the outer side ofthe branch track, ofA a lifting-tongue at the inner side of the same, as such combination is claimed in my copending application, Serial No. 167,890. I do not, however, wish to be limited herein to the details of construction and arrangement which I have herein shown and described, as various changes may be made therein without departing from the inner side of said switch and movable to and from the head of the adjacent main rail from the inner side of tbesame.

2. In an unbroken-main-line switch, the combination with a deiiecting-tongue at the outer side of the switch, of a lifting-tongue at the inner side of said switch and movable to and from the head of the adjacent main rail from the inner side of the same, and means for moving said switches in opposite directions in unison.

3. In an unbroken-main-line switch, a casting secured to the inner side of the main rail and having a floor level with the tram of said rail, and a tongue pivoted to said casting at the end portion distant from the branch-trackrail connection and movable toward and away from said rail, said tongue having alifting flange or'riser at its outer side.

4. In an unbroken-main-line switch, the combination with a main rail, of a casting secured to the inner side of the same, a tongue pivoted to said casting and having a lifting-fiangc ris; ing to the level of the vhead of said rail, and a pivoted delccting-tongue at the opposite side of the track.

5. In an unbroken-'main-line switch, the cornbination with the main-line rails, and the branch-track rails, of the two movable mem# bers or tongues pivoted at opposite ends and connected across the tr ack to work in unison.`

6. In an unbroken-main-line switch, the combination with a deflecting-tongue at one side of the track, of a lifting-tongue at the opposite side of the track, said tongues being pivoted at opposite ends and the lifting-tongue being set in advance of the deiiecting-tongue.

7. In an unbroken-main-line switch, the combination with a deiiecting-tongue at one side of the track, of a lifting-tongue at the opposite side of the track, said tongues bei-ng pivoted at opposite ends and the lifting-tongue being set in advance oi' the deflecting-tongue, and transverse connections between said taneously in opposite directions.

In testimony whereof Ihave aiiXed my signature in presence of two witnesses.

GEO. M. ERVIN. Witnesses:

LoRE'rTo OCONNELL, H. W. SMITH. 

